iSpring UVB11 UV lamp, 11W, 1 GPM, 5/8 x 8 1/4" - Faucet Mount Water Filters - Amazon.com
11 Watt G23 Replacement UV Bulb | 2-Pin Base | The Pond Guy
Osram 11 W Puritec HNS UV Lamp for Water Air Surface Purification Germicidal | eBay
EasyPro - Replacement UV Lamp - 11 Watts
UV-C PL Lamp 11 Watt - universal UV-C lamp for all 11 Watt PL fixtures
Ultraviolet Water Steriliser Treatment System 11 W 227LPH 304SS Philips Lamp | eBay
Amazon.com: Aquarium Clean Light,11 W UV Sanitizer Submersible Light with Timer,Aquarium Water Clean Green Clear Waterproof Clean Lamp for Pond,Swimming Pool,Indoor : Pet Supplies